Sinkholes: Exploring the science behind the catastrophes

January 14, 2014, 9:52 AM|A new special on Discovery's "Destination America" includes first-hand accounts of sinkhole survivors. Geologist Drew Glasbrenner - who is on the show - and contributor Michio Kaku, a physics professor at the City College of New York, talk to the "CBS This Morning" co-hosts about the phenomenon.